Malicious PDF — malware analysis report

Static analysis result for SHA-256 4503e184faa1af3a…

MALICIOUS

PDF

80.0 KB Created: 2022-03-29 21:33:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-25
MD5: 8f4d2f211402d486f18d3993bb32d83c SHA-1: 4f7c9dd76fd8252b4a923bef8e72034eff99fb17 SHA-256: 4503e184faa1af3a947934747a930b8c3dec51a1fa61df1e05762c823c7a06bd
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://mifuj.co.za/YmrXLWy8?keyword=spring%20framework%20certification%20study%20guide PDF link annotation
    • https://siemens-rozetki.ru/kcfinder/upload/files/51288530894.pdfIn PDF document text
    • https://pivokobofu.weebly.com/uploads/1/3/4/6/134648089/076479.pdfIn PDF document text
    • https://satiragekawojiw.weebly.com/uploads/1/3/2/7/132740750/gaxolomibosir.pdfIn PDF document text
    • http://cbelmira.com/wp-content/plugins/super-forms/uploads/php/files/1930378448f1a974e3a97697bbd199bd/vemarigelefebolobu.pdfIn PDF document text
    • https://vutavevivusupe.weebly.com/uploads/1/3/0/7/130776898/bugefelo_xadawug_wiwovij.pdfIn PDF document text
    • http://andezit-bg.com/files/88513079120.pdfIn PDF document text
    • http://www.tramag.pl/upload/file/gugovokewirefutaxenovifi.pdfIn PDF document text
    • https://perotufolijefup.weebly.com/uploads/1/3/4/6/134613204/fff92e5276.pdfIn PDF document text
    • http://vividconcept.in/userfiles/file/barova.pdfIn PDF document text
    • https://familienbilstrup.dk/ckfinder/userfiles/files/19637872935.pdfIn PDF document text
    • http://kapsalonindex.nl/images/uploads/51848588523.pdfIn PDF document text
    • http://korio-olsztyn.pl/userfiles/file/38753970712.pdfIn PDF document text
    • https://wujibinofowe.weebly.com/uploads/1/3/1/3/131383737/9946150.pdfIn PDF document text
    • http://perila-vrn.ru/userfiles/file/60187655445.pdfIn PDF document text
    • http://fastbeatbattlerider.saint-fun.com/assets/upload/files/87682567923.pdfIn PDF document text
    • https://wamsconference.com/wp-content/plugins/super-forms/uploads/php/files/71d9a87860e830417ab9ba493ebc32b2/fomejanodejorezovizekebo.pdfIn PDF document text
    • https://vifabuwu.weebly.com/uploads/1/3/1/6/131606679/2948784.pdfIn PDF document text
    • https://ruvofoxodade.weebly.com/uploads/1/3/0/7/130738615/jizaxogarekijixugaj.pdfIn PDF document text
    • https://rirujidina.weebly.com/uploads/1/3/5/9/135957349/3377391.pdfIn PDF document text
    • https://retotitinikuj.weebly.com/uploads/1/3/4/3/134349113/4190700.pdfIn PDF document text
    • https://noitiethoc.com/userfiles/file/vadap.pdfIn PDF document text
    • https://lozugukavokukes.weebly.com/uploads/1/3/4/3/134357100/8260568.pdfIn PDF document text
    • https://getivafet.weebly.com/uploads/1/3/5/9/135960962/6923225.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0000d485.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000d485.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d485.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD485 11384 bytes
SHA-256: 2701e2b22f3499da735082e3ac6ec04667e2a421a02be7a91d90e74394da5f6e
font_01_sfnt_off0000ef3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF3C 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off000105db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105DB 16904 bytes
SHA-256: 64427113054cda25607511a0936262018a3dd1c53d4026fdcf90fd3a906268f6